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PATENTED MAR. 24, 1908. `H. BARDSLEY.

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APPLICATION FILED HAR. 19.1906- I VPATENTBD MAR. 24, 190s.

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UNITED sTATEs APATENT oEErcE.

HENRY BARDSLEY, OF PROVIDENCE, RHODE ISLAND, ASSIGNOR TO OROMPTON & KNOWLES LOOM WORKS, A CORPORATION OF MASSACHUSETTS.

LOOM.

To all whom tt may concern:

Be itknown that I, HENRY BARDsLEY, a citizen of the United States, residing at Providence, in the county of Providence and State of Rhode Island, have invented certain new and useful Improvements in Looms, of

which the following is a specification.

My invention relates to new and useful improvements in looms, and more particularly to a stop motion for'the driving mechanism of a pattern chain.

The object of my invention is to provide an improved stop motion for the driving mechanism of a pattern chain, or a mechanism for stopping said driving mechanism when the filling is exhausted or breaks and the loom is to be stopped through the ordinary filling detector or weft fork mechanism, in the usual Way.

My invention consists in certain novel features of construction of my improvements as will be hereinafter fully described.

I have only shown in the drawing a detached part of a loom with my improvements combined. therewith, sufficient to enable those skilled in the art to understand the construction and operation thereof.

Referring to the drawing z-Figure 1 is a transverse section through the breast beam, and the crank and bottom shafts of a loom, showing a detached portion of a loom side, and my improvements combined therewith. Fig. 2 is a section, on line 2, 2, Fig. 1, looking in the direction of arrow a, same figure. Fig. 3 shows the mechanism shown in Fig. 1, detached, and with the parts thereof in their opposite position. Fig. 4 corresponds to Fig. 3, but shows some of the parts in a different position, and Fig. 5 corresponds to Fig. 1, but shows a pattern chain cylinder, and ratchet and pawl operating mechanism, not shown in Fig. 1.

ln the accompanying drawing, 1 is the loom side, 2 the breast beam, 3 the crank shaft, 4 the bottom shaft, and 5 the transverse rocking shaft or rod of the ordinary filling detector or weftfork mechanism.

l will now describe my improvements.

Fast on the bottom shaft 4 is a cam 6. A lever 7, operated by the cam 6, is pivoted on a stud 8, and is in this instance made yokeshape, or with two arms extending upon opposite sides of the cam 6. The lever 7 has Specification of Letters Patent.

Application filed March 19, 1906.

Patented March 24, 1908.

Serial No. 306,732.

an extension 7 thereon, adapted to be engaged by a pawl 9. The pawl 9 isffast on a stud 1.0, loosely mounted ina hub 12 on the end of the arm 12 of the lever 12, which has a hub 12 see Fig. 2, loosely mounted on the stud 8. The lever 12 has a slot 12 in one end, with which is adjustably connected the lower end of a vertically moving rod 13, which is connected at its upper end with a two arm lever 20, pivotally mounted on a stud 21, and carrying a pawl 22, which engages a ratchet wheel 23 fast on a shaft 24 of the pattern chain cylinder 25, carrying a pattern chain 26 of ordinary construction. A pattern indicator lever 27 is pivoted on a rod 28, and extends over the pattern chain cylinder 25, and is connected by a rod or connector 29 with the drop boxes, not shown, in the usual and well known way. Through the rotation of the cam 6, and the rocking motion of the cam-lever 7, and the movementof the lever 12, a vertical reciprocating movement is communicated to the rod 13, when the pawl 9 is in the position shown in Figs. 1 and 3, to move the two arm lever 20 and pawl 22, to rotate the ratchet 23 and the pattern chain cylinder 25, and the pattern chain 26.

Fast on the stud 10 is the hub 14 of an arm 14, see Fig. 2. The other end of said arm 14 is connected, through a wire 15, a fiexible connection 15 passing over a guide sheave 16, and a wire 15, with an arm 17 fast on the rocking shaft 5.

A spring 18, connected with the arm 14 and the lever 12, acts to yieldingly hold the pawl 9 in engagement with the extension 7 on the lever 7, as shown in Fig. 1. A pin or projection 12a on the lever 12 extends in the path of, and is adapted to be engaged by the lower arm of the cam lever 7, to cause the downward movement of said lever 12 by the rotation of the cam 6, from the position shown in Fig. 3 to the position shown in Fig. 1.

From the above-description in connection with the drawing the operation of my improvements will be readily understood by those skilled in the art.

When the loom is running normally, the rotation of the cam 6 on the bottom shaft 4, will, through cam lever 7, extension 7 thereon, and pawl 9, in engagement with said extension 7 and lever 12, communicate an up and down movement to the rod 13, to move the shuttle box pattern chain barrel.

The position of the parts in Fig. 1 shows the rod 13 in its lowest position, and the position of the parts in Fig. 3 shows the rod 13 in its highest position.

In case the transverse rod 5 is rocked, through the operation of the filling fork detector mechanism on the breakage or absence of filling, in the usual way, the arm 17 will be moved upwardly, in the direction of the arrow in Fig. 1, and through connections 15, 15l and 15 to the arm 14, will move said arm towards the front of the loom, against the action of the spring 18, and will also move the pawl 9 fast on the stud 10, to disengage the same from the projection 7" on the cam lever 7, as shown in Fig. 4. The disengagement of the pawl 9 from the proj ection 7 on the cam lever 7, will allow of the continued movement of the cam lever 7, through the rotation of the cam 6 on the bottom shaft 4, without moving the lever 12 and the rod 13, and leaving them at rest, and consequently leaving at rest or stopping the rotation of the pattern chain cylinder.

When the filling fork mechanism is returned to its normal position and also the shaft 5, and the loom started, the spring 18 will act to move the arm 14, and also move the pawl 9 into engagement with the projection 7 on the cam lever 7, to cause the movement of the lever 12 and rod 13, through the movement of the cam lever 7, as above described.

It will be understood that the details of construction of my improvements may be varied if desired.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is 1. In a loom, a driven cam, a lever operated by said cam, a second lever connected with a rod or connector of the pattern chain driving mechanism, and said rod or connector, a projection on said second mentioned lever to be engaged by the first mentioned lever, a pawl pivoted on said second mentioned lever and adapted to engage the .first mentioned lever, and vmeans for moving said pawl out of operative engagement with the first mentioned lever to leave the second mentioned lever at rest.

2. In a loom, a driven cam, a lever operated by said cam, a second lever connected with a rod or connector of the pattern chain driving mechanism, and said rod or connector, a projection on said Asecond mentioned lever to be engaged by the first mentioned lever, apawl pivoted on said second mentioned lever and adapted to engage the first mentioned lever and the rock shaft of the filling fork mechanism and means operated from said rock shaft for moving said pawl out of operative engagement with the first mentioned lever to leave the secondv mentioned lever at rest.

3. In a loom, a driven cam, a lever operated by said ca m, a second lever connected with a rod or connector of the pattern chain driving mechanism, and said rod or connector, a projection on said second mentioned lever to be engaged by the first mentioned lever, a pawl pivoted on said second mentioned lever and adapted to engage the first mentioned lever and an arm connected with said pawl, and the rock shaft of the filling fork mechanism and a connection from said arm to said rock shaft to move said pawl out of operative engagement with the first mentioned lever and leave the second mentioned lever at rest.

4. In a loom stop motion for pattern chain driving mechanism, a driven cam, a cam lever operated by said cam, a second lever connected with a rod or connector of the pattern chain driving mechanism, and said rod or connector, a projection on said second mentioned lever to be engaged by the first mentioned lever, a pawl pivoted on said second mentioned lever, and adapted to engage the first mentioned lever, and an arm connected with said pawl and means connected with said arm to move said pawl out of operative engagement with the first mentioned lever, and leave the second mentioned lever at rest.

HENRY BARDSLEY. 

